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Finding the Fourth Proportional to 26,608.55, 39,916.93 and 9,074.28

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Solution

The fourth proportional to 26,608.55, 39,916.93 and 9,074.28 is: 13,612.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,608.55 : 39,916.93 = 9,074.28 : x
  2. Step 2: Convert to fraction form
    26,608.55/39,916.93 = 9,074.28/x
  3. Step 3: Cross multiply
    26,608.55x = 39,916.93 × 9,074.28
  4. Step 4: Simplify right side
    26,608.55x = 362,217,399.56
  5. Step 5: Solve for x
    x = 362,217,399.56/26,608.55
  6. Step 6: Final answer
    x = 13,612.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.